Are you ready to integrate your new ACI network to your existing environment? In this chapter we'll learn how to do so by connecting a new ACI network and gradually migrate your existing services as seamlessly as possible. We'll go through some general recommendations and some specific scenarios such as DHCP considerations, VMware ESX server migrations, migrating from an external gateway to an ACI Anycast gateway, L4-L7 services migration recommendations and more. Finally, we will briefly cover how BPDUs are treated in ACI and some recommendations to ensure your migration to ACI is a successful one